Review: Grapes grow in clusters of 6 to 300, and can be black, blue, golden, green, purple, red, pink, brown, peach or white. They can be eaten raw or used for making jam, grape juice, jelly, wine and grape seed oil. The leaves of the grape vine itself are considered edible and are used in the production of dolmades.Red or not, grapes of all colors offer comparable benefits. Red wine offers health benefits not found in white wine, because many of the beneficial compounds are found in the skins of the grapes, and only red wine is fermented with the skins.